Machine for forming sections of metal barrels.



G. WEISS. MACHINE FOB. POBMING SECTIONS 0F METAL BARRELS.'

APPLICATION FILED SEPT. 8, 1910 Patented Aug. 15, 1911.

3 SHEETS-SHEET 2.

COLUMBIA PLANUGRAPH (20 WASHINGTON, D, c.

GQ, WEISS. MACHINE FOR roRMING SECTIONS or METAL BARRELS. APPLICATIONFILED SEPTA, 1910.

1,000,468, Patented-Aug. 15, 1911.

l 3 SHEETS-SHEET 3.

GEORGE WEISS, OF CHICAGO,

ILLINOIS, A SSIGNOR TO CHARLES H. WACKER, OF

CHICAGO, ILLINOIS.

MACHINE FOR FORIVIING SECTIONS OFIVIETAL BARRELS.

Specification of Letters Patent.

Patented Aug. 15, 1'911.

Application led September 8, 1910. Serial No. 581,017.

To all 'whom- 'it may concern:

Be it known that I, GEORGE Vniss, a citizen of the United States,residing at lChicago, in the county of Cook and State of Illinois, haveinvented certain new and usefulImprovenients in Machines for Forming theSections of Metallic Barrels, of which the following is a specification.

My invention relates more particularly to machines which form metallicbarrels in two sections, each of which is drawn or formed from a singleblank. The sections, after reduction to the final shape, are joined byseaming, welding or otherwise, the seam 0r joint being located aroundthe b-ilge of the barrel midway between the ends thereof. The machine ofthe present invention operates upon the barrel sections or halves whenthey are in the form of hollow sheet metal cylinders with one end closedand expands the open end of the cylinder, at the same time dishing theclosed end.

My invention, broadly speaking, consists in a machine havingoppositely-mounted dies with an intermediate motor to which areconnected forming heads cooperating with the dies.

My invention further consists in an eX- tractor for releasing the formedsections from the dies and in other details which are pointed out in theclaims.

In the drawings which accompany the specification and form a part of theapplication Figure l is a side elevation of the machine; Fig. 2 ahorizontal section through the center of the machine on the line 2-2 ofFig. 1; Fig. 3 a vertical section on the off-set line 3 3 of Fig. 2;Fig. 4 is a fragmentary section on the line H of Fig. 3; Fig. 5 is aerspective view of one of the blanks from which the barrel sections areformed; and Fig. 6 is a perspective View of a barrel section after ithas been operated upon by my machine. l

In the particular embodiment of my invention shown in the accompanyingdrawings the frame consists of a base 7, end supports 8, 8, a centralsupport 11, and upper and lower brace or tension rods 9, 13. Thesupports 8 and 11 are cast in a substantially circular shape withreinforcing ribs or webs at right angles to the bodies of the supports.Each support is bolted to the base as at lil and provided withopen-ended slots at its upper and lower ends for the reception of 'haustthe other valve 1s tension bars 9 and 13 respectively. It will beapparent that this particular form of fra-me is not essential to myinvention though 1t serves as a convenient mounting for the mechanismwhich I employ. The central support 11 has cast or formed integraltherewith a cylinder 17 which is bored from either end, as at 18, forthe reception of a piston 19, a web 2O being left at the longitudinalcenter of the cylinder. This web, however, is also bored at 21 for thepassage of the piston rod 22 to which the pistons 19 are connected bythreaded joints 23. Suitable `packing rings 211 surround the p-iston rodon either side of the web 20 to prevent leakage of the motive fluid, inthis case water, from one cylinder to the other. Glands 25 are providedfor packing the cylinder around the pistons at the outer ends of theformer and the pistons carry former heads 26 on their outer extremitiessecured thereto by screws 27 tapped into the ends of the pistons. Thetwo cylinders are further provided at their adjacent ends with passages32 for the influx and efllux of the Working fluid and each of thesepassages leads to a valve casing 30 including a turnying plug 29 andconnected to inlet and exhaust pipes 28, 31. rIhe turning plugs haverectangular passages shown in Fig. 2, and the positions of the inlet andexhaust passages and the passages 32 are such that by turning the valvesthe interior of the cylinders may be connected with either the inletpipes or outlet pipes at pleasure. In order to secure the simultaneousoperation of the valves, however, the turning plugs are provided witharms 33, 33, which are connected together by a link 34k and one of whichis extended into the handle 35, the connection being such that as onevalve is turned to connect the corresponding cylinder with the exturnedto connect its supply and vice versa. Y Upon the Aend sections 8, 8, ofthe frame are mounted the female die sections 36, 36, with which theformer heads 26 coperate. At the bottom of each die is formed acylindrical recess 37 within which is mounted for reciprocation anextractor 38, the outer faceY of whichis flush with the .operativesurface of the die member when in its retracted position and is properlyshaped to form the head of the barrel section. Each extractor extendsinto a recess formed in the end seccylinder with the tion of the frame,which latter is provided with a further cylindrical extension 39 with abore 40 of smallerv diameter than the extractor through which extends astem 41 connected to the extractor 38 and surrounded by a coiled spring42. The stem further extends through an opening in the frame section andis provided with a nut 43 beyond the same which limits the movement ofthe extractor.

The operation of my barrel-forming niachine will now be clear. With theparts in the Vposition shown in Fig. 2 a blank such as shown at A (Fig.5) is placed in the right-hand die and the valves turned to admit iiuidto the connect the left-hand cylinder to the exhaust. Thereupon thepistons 19 move to the right, carrying the former heads with them andthat upon the right-hand piston enters the blank and expands it causingit to assume the shape of the interior of the die 36 which is also theshape of the exterior of the former 26. Under the pressure of the formerhead the extractor 37 retreats within its recess until its outer wall isflush with the surface of the die. When the former head has completedits work the position of the valves is reversed so that Huid is admittedtothe left-hand cylinder and cut off from the right-hand cylinder,another blank in the meantime having been placed in the die, shown atthe left of Fig. 2. The righthand former head is thenwithdrawn from itsdie and thereupon the extractor 37 being relieved of the pressure'movesforward under the pressure of its spring to force the completed barrelsection from the die. This operation may be repeated indefinitely.

It will be apparent that in my machine a section is formed at eachmovement of the former head in either direction and that the extractorreleases the formed section from the die as soon as the correspondingformer head is withdrawn s o that by my machineit is possible to formthe product with great rapidity and with minimum of attention on thepart of attendants. It will also be apparent that my invention is notconfined strictly to the formation of barrels as it is well adapted forthe manufacture of a number of similar products.

Various changes may be made in the particular form of this apparatuswithout departing from my invention. Thus it will be obvious that thecylinders might be made in separate castings and secured to the centralsupport, or the valve casings might be made right-hand cylinder andseparate from the thereto, but these and other changes which willsuggest themselves to those skilled in this and analogous arts, arestill within the scope of my invention as stated in the fol lowingclaims.

-What I claim is:

1. In a device of the class frame, a pair of hollow mounted on theframe, a pair of cylinders intermediate the dies, pistons in thecylinders connected for joint operation, valves for controlling thesupply and exhaust of iuid to the cylinders, and former heads mounted onthe respective pistons.

2. In a device of the class frame, a pair of hollow dies oppositelymounted on the frame, a pair of cylinders intermediate the dies, pistonsin the cylinders connected for joint operation, valves connected forsimultaneous action for controlling the supply and exhaust of iiuid tothe cylinders, and former heads mounted on the respective pistons.

described, a dies oppositely cylinders and attached described, a-

3. Ina device of the class described a Y frame comprising end supports 88; hollow dies mounted upon said supports; a reciprocating motorintermediate the dies; a pair of former heads connected to the motor andadapted and arranged to coperate with the respective dies, each diehaving an opening in its bottom, a recess in the corresponding supportregistering with the opening and an extractor mounted in each in the dieand recess in the standard.

4. In a device of the class described, a frame; a pair of hollow diesoppositely mounted on the frame; a movable extractor forV each die withmeans for moving the same; Va pair of cylinders intermediate the dies;pistons in the cylinders connected for joint operation; valves forcontrolling the supply and exhaust of Huid to the cylinders, and formerheads mounted on the respective pistons.

5.v In a device of the class described, a frame comprising oppositelymounted-supports 8 8; a hollow die mounted on each support; an extractorin each die having means for moving the same; and al pair of formerheads connected together, each adapted to cooperate with one of thehollow dies; and hydraulic means for simultaneously operating the formerheads.

GEORGE WEISS.

Witnesses:

JOHN B. MACAULEY, Louis B. ERWIN.

Copies of this patent may be obtained for five cents each, by addressingthe Washington, D. C.

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